#ifndef _FCNTL_H
#define _FCNTL_H

#include <sys/types.h>

/* open/fcntl - NOCTTY, NDELAY isn't implemented yet */
#define O_ACCMODE    00003
#define O_RDONLY        00
#define O_WRONLY        01
#define O_RDWR          02
#define O_CREAT     00100   /* not fcntl */
#define O_EXCL      00200   /* not fcntl */
#define O_NOCTTY    00400   /* not fcntl */
#define O_TRUNC     01000   /* not fcntl */
#define O_APPEND    02000
#define O_NONBLOCK  04000   /* not fcntl */
#define O_NDELAY    O_NONBLOCK

/* Defines for fcntl-commands. Note that currently
 * locking isn't supported, and other things aren't really
 * tested.
 */
#define F_DUPFD     0   /* dup */
#define F_GETFD     1   /* get f_flags */
#define F_SETFD     2   /* set f_flags */
#define F_GETFL     3   /* more flags (cloexec) */
#define F_SETFL     4
#define F_GETLK     5   /* not implemented */
#define F_SETLK     6
#define F_SETLKW    7

/* for F_[GET|SET]FL */
#define FD_CLOEXEC  1   /* actually anything with low bit set goes */

/* Ok, these are locking features, and aren't implemented at any
 * level. POSIX wants them.
 */
#define F_RDLCK     0
#define F_WRLCK     1
#define F_UNLCK     2

/* Once again - not implemented, but ... */
struct flock {
    short l_type;
    short l_whence;
    off_t l_start;
    off_t l_len;
    pid_t l_pid;
};

extern int creat(const char * filename,mode_t mode);
extern int fcntl(int fildes,int cmd, ...);
extern int open(const char * filename, int flags, ...);

#endif
